Metal Complexes with Very Large Dipole Moments: the Anionic Carborane Nitriles 12-NC–CB<sub>11</sub>X<sub>11</sub><sup>–</sup> (X = H, F, CH<sub>3</sub>) as Ligands on Pt(II) and Pd(II)
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The anionic nitriles 1-R-12-NC–CB11H10– (R = H, CH3, I, COOH), 12-NC-1-H–CB11Me10–, and 12-NC-1-H–CB11F10– were prepared, and three of them were examined for complex formation with (Et3P)2Pt(II) and (Et3P)2Pd(II). Several stable internally charge-compensated zwitterionic complexes were obtained and characterized. RI-BP86/SV(P) calculations suggest that their dipole moments exceed 20 D. An attempt to measure the dipole moments in solution failed due to insufficient solubility in solvents of low polarity.
创建时间：
2016-04-12
